Home / 28,343.24-42,513.78-7,566.56

Finding the Fourth Proportional to 28,343.24, 42,513.78 and 7,566.56

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Solution

The fourth proportional to 28,343.24, 42,513.78 and 7,566.56 is: 11,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.24 : 42,513.78 = 7,566.56 : x
  2. Step 2: Convert to fraction form
    28,343.24/42,513.78 = 7,566.56/x
  3. Step 3: Cross multiply
    28,343.24x = 42,513.78 × 7,566.56
  4. Step 4: Simplify right side
    28,343.24x = 321,683,067.20
  5. Step 5: Solve for x
    x = 321,683,067.20/28,343.24
  6. Step 6: Final answer
    x = 11,349.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.